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Finding the Fourth Proportional to 1,069.94, 1,476.70 and 895.22

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Solution

The fourth proportional to 1,069.94, 1,476.70 and 895.22 is: 1,235.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069.94 : 1,476.70 = 895.22 : x
  2. Step 2: Convert to fraction form
    1,069.94/1,476.70 = 895.22/x
  3. Step 3: Cross multiply
    1,069.94x = 1,476.70 × 895.22
  4. Step 4: Simplify right side
    1,069.94x = 1,321,971.37
  5. Step 5: Solve for x
    x = 1,321,971.37/1,069.94
  6. Step 6: Final answer
    x = 1,235.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.